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Unit 1 - Advanced Grammar and Reading Comprehension

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Lesson 1 Quiz: Narrative Tenses, Conditionals, and Academic Vocabulary

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1.
By the time the train arrived at the station, the passengers _____ on the platform for over an hour.
will wait
had been waiting
have waited
are waiting
2.
According to the Chain Rule, if y = (3 x2 - 5)4, then dy/dx is:
4 (3 x2 - 5)3
12 x (3 x2 - 5)4
24 x (3 x2 - 5)3
6 x (3 x2 - 5)3
3.
The derivative of y = sin(3x) with respect to x is:
cos(3x)
3 sin(3x)
-3 cos(3x)
3 cos(3x)
4.
The hydrostatic pressure exerted by a static homogeneous liquid of density rho at depth h beneath its free surface is expressed by:
P = rho * g / h
P = rho * g * h
P = rho * h / g
P = 1/2 rho * g * h2
5.
A diver descends to a depth of 30 meters in seawater (density = 1030 kg/m3). If atmospheric pressure is 1.013 x 105 Pa and g = 9.8 m/s2, the total absolute pressure experienced by the diver is approximately:
4.04 x 105 Pa (approx. 4.0 atmospheres)
3.03 x 105 Pa
1.01 x 105 Pa
6.06 x 105 Pa
6.
A U-tube contains water (ρ = 1000 kg/m3) and oil (ρ = 800 kg/m3). If the oil column height above the interface is 10 cm, the balancing water column height is:
10 cm
6.4 cm
8 cm
12.5 cm
7.
The density of an ideal gas at temperature T and pressure P is rho. If the pressure is tripled and the absolute temperature is halved, the new density becomes:
1.5 rho
0.67 rho
3 rho
6 rho (since rho is proportional to P / T)
8.
An ionic bond is formed primarily between:
Two non-metal atoms sharing pairs of valence electrons equally
Positive metal ions immersed in a sea of delocalized electrons
Noble gas atoms at very low temperatures
A metal atom that loses electrons forming a cation and a non-metal atom that gains electrons forming an anion due to electrostatic attraction
9.
The infective stage of the female Anopheles mosquito in the life cycle of Plasmodium malaria is:
Gametocytes
Sporozoites
Merozoites
Zygote
10.
The motile phase (motile zygote / ookinete) in the life cycle of Plasmodium malaria is characterized by:
It secretes malaria toxin
It is diploid (2N) and penetrates the mosquito's stomach wall and turns into an egg sac
Haploid group N
It attacks red blood cells
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